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Porto Velho

RO · North · State capital

Population: 520,379 (IBGE estimate 2026)

About Porto Velho

Photo of Porto Velho
Photo: Heitor Carvalho Jorge · CC BY 3.0 · Wikimedia Commons

Machine translation of the Portuguese Wikipedia article (November 2026 version).

Porto Velho is a Brazilian municipality and the capital of the state of Rondônia. With a population of 460,434 inhabitants, according to data from the Brazilian Institute of Geography and Statistics (IBGE) collected during the 2022 Census, it is the most populous municipality in Rondônia and the fourth most populous in the North Region, behind only Manaus, Belém and Ananindeua. Among all Brazilian municipalities it is the 49th most populous, and in the same year it ranked as the 22nd most populous state capital in the country.

With an area of 34,090.95 km², Porto Velho is the largest state capital in the country, being larger than two Brazilian states (Alagoas and Sergipe), and surpassing whole countries such as Belgium and Israel. It is also the most populous border municipality in Brazil and the only state capital whose territory borders another country, namely Bolivia.

Located on the east bank of the Madeira River, in the North Region of Brazil, Porto Velho was founded by the American company Madeira Mamoré Railway Company on 4 July 1907, during the construction of the Madeira-Mamoré Railway, led by the American magnate Percival Farquhar. On 2 October 1914 it was legally established as a municipality of Amazonas, becoming the capital of the state of Rondônia in 1943, when the Federal Territory of Guaporé was created. In 1956 the territory was renamed Rondônia, and it was elevated to the category of state (subdivision) on 4 January 1982.

Text: Wikipedia · CC BY-SA 4.0 · Read the full article on Wikipedia (in Portuguese)

Scores by topic

0 to 100, compared with Brazilian municipalities of 100,000+ residents (rent: compared among the 36 cities with rent data).

Cost of living

No rent data

Rent data (FipeZAP) covers 36 cities. Here the cost topic counts as average (50) in the score.

Healthcare

52

RO average (4 cities): 43 · All 338 cities: 34

Hospital beds per 1,000

3.83 per 1,000 residents

Source: CNES / DATASUS (TabNet) · Reference: Sep 2026 · License: Public data

Doctors per 1,000

3.54 per 1,000 residents

Source: CNES / DATASUS (TabNet) · Reference: Sep 2026 · License: Public data

Airport access

4

RO average (4 cities): 3 · All 338 cities: 60

Distance to intl. airport (km)

851.98 km

Source: ANAC – Voo Regular Ativo e Aeródromos · Reference: Sep 2025–Aug 2026 · License: Open data

International departures within 100 km

0 departures in 12 months

Source: ANAC – Voo Regular Ativo e Aeródromos · Reference: Sep 2025–Aug 2026 · License: Open data

Nearest international airport

Eduardo Gomes (SBEG), 852 km in a straight line · 855 international departures in 12 months

Social Progress Index (overall)

58.6

score 0–100 · Source: Índice de Progresso Social Brasil · Reference: SPI Brazil 2026 (2024 data) · License: CC BY 4.0 (report)

Climate month by month

Hot Average temperature: 27.1 °C (Average temperature 25 °C (77 °F) or higher)

15 20 25 30 35 40 °C Jan: 31.6 °CFeb: 31.5 °CMar: 31.6 °CApr: 31.8 °CMay: 31.3 °CJul: 32.8 °CAug: 34.3 °CSep: 34 °COct: 33.7 °CDec: 31.7 °C Jan: 22.8 °CFeb: 22.7 °CMar: 22.7 °CApr: 22.4 °CMay: 21.4 °CJun: 19.9 °CJul: 19.3 °CAug: 19.7 °CSep: 21.2 °COct: 22.3 °CNov: 22.7 °CDec: 22.6 °C JanFebMarAprMayJunJulAugSepOctNovDec
Avg. high (°C) Avg. low (°C)
Show monthly table
Month JanFebMarAprMayJunJulAugSepOctNovDec
Avg. high (°C) 31.631.531.631.831.3–32.834.334.033.7–31.7
Avg. low (°C) 22.822.722.722.421.419.919.319.721.222.322.722.6

Weather station Porto Velho, 96 km away · climate normals 1981-2010 · Source: INMET Normais Climatológicas · License: Public data

Location

Nearby cities

Up to 150 km in a straight line. Scores use your weights.

  1. Ariquemes RO · 106 km 37

Cities with a similar profile

Topic scores closest to those of Porto Velho. Scores use your weights.

  1. São Luís MA · Northeast 47
  2. Palmas TO · North 57
  3. Boa Vista RR · North 44
  4. Cuiabá MT · Center-West 53
  5. Rio Branco AC · North 47
  6. Macapá AP · North 46

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